Sliding door

Abstract

The utility model discloses a sliding door which comprises a sliding door machine, the sliding door machine drives a door body to move left and right in parallel, a motor and a normally-closed switch are arranged in the sliding door machine, the motor is controlled by the normally-closed switch to form a short circuit during power failure, and the sliding door machine is further provided with a lock body capable of controlling opening and closing of a main circuit of the motor. And the motor can be disconnected when the lock body is unlocked. The device has the advantages of being simple in structure and convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric door field especially relates to a simple structure, convenient maintenance's electric sliding door. BACKGROUND

[0002] The sliding door has the characteristics of high efficiency, convenience and beauty, compared with the traditional rotating door or sliding door, the sliding door shows the remarkable advantage in the opening speed, sealing performance, noise control and safety. The modern sliding door is usually equipped with intelligent control system, can realize the contactless access control, remote monitoring and fault early warning function, greatly improves the user experience and safety. With the development of society, the sliding door is widely used in airport, railway station, shopping center, high-grade office building and residential area and so on. With the acceleration of urbanization process and the increasing demand of intelligent building, the market demand of sliding door continues to grow. The existing sliding door generally uses worm gear, worm gear transmission and alternating current motor, in order to reach the purpose of opening and closing door stop, still need to set up travel switch or magnetic control switch in suitable limit distance, the mechanical clutch is used to remove the worm gear self locking in power failure, so as to achieve the purpose of manual opening and closing door. The structure is more complex, and the maintenance cost is high. SUMMARY

[0003] In order to solve the above problems, the utility model discloses a simple structure, convenient maintenance's sliding door.

[0004] The utility model discloses a sliding door, including sliding door machine, sliding door machine drive a door body left and right parallel movement is arranged with motor and normally closed switch in sliding door machine, the motor is controlled by normally closed switch and forms short circuit when power failure, still be provided with a lock body that can control the motor main circuit switch on sliding door machine, when the lock body is unlocked, can make the motor circuit break.

[0005] As a preferred mode, a rack is arranged on the door body, a gear meshing with the rack is fixed on the motor drive shaft, the gear rotates to drive the door body to move left and right in parallel, and an encoder for detecting the rotation of the motor is further arranged on the motor.

[0006] As a preferred mode, the motor is a general permanent magnet motor or a three-phase permanent magnet synchronous motor.

[0007] As a preferred mode, the input end of the motor is connected with two groups of lines in parallel, the first group of lines is powered by the controller, the second group of lines of the motor is short-circuited through the normally closed switch, and the normally closed switch is connected with the power supply; when the power supply stops power supply, the normally closed switch makes the second group of lines short-circuit, and when the power supply supplies power, the normally closed switch makes the second group of lines open circuit.

[0008] As a preferred mode, the translation door machine is fixed on the ground, a guide rail is arranged on the ground, and at least two rollers are arranged on the lower edge of the door body.

[0009] As a preferred mode, the guide rail is provided with an overrunning block at the upper end of the guide rail to limit the movement of the door body.

[0010] When the utility model works normally, the lock body is in a closed state, the normally closed switch is powered on and opened, the motor works normally at this time, and the door body is driven to translate to realize the opening and closing of the door; when power failure occurs, the normally closed switch is simultaneously de-energized and closed, so that the main circuit of the motor is short-circuited, and if someone moves the door body with force, the motor is reversely driven to rotate at high speed through the deceleration mechanism (the magnetic field and the coil cut the magnetic force lines to move to generate induced electromotive force), that is, the motor is converted into a generator, at this time, the motor is short-circuited, and impedance force is generated in the motor to avoid the door body from being pushed by human force. When the door body needs to be pushed by human force during power failure or failure, the motor is disconnected by unlocking the lock body with a key, at this time, the door body is manually pushed, and impedance force is not generated in the motor, so that the door body can be easily pushed. The utility model sets the normally closed switch to form a short circuit when the motor is powered off, and sets the lock body to disconnect the motor after being unlocked, so that the purpose of manually pushing and closing the door is achieved by using a simple structure to solve the problem that a complex mechanical clutch is needed to unlock during power failure. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 FIG. 1 is a structural schematic view of a translation door according to an embodiment of the utility model.

[0012] Figure 2 FIG. 2 is a structural schematic view of a translation door machine according to an embodiment of the utility model.

[0013] Figure 3 FIG. 3 is an exploded schematic view of the translation door machine according to the embodiment of the utility model.

[0014] Figure 4 FIG. 4 is a circuit schematic view of a single-phase ordinary permanent magnet motor according to an embodiment of the utility model.

[0015] Figure 5 FIG. 5 is a circuit schematic view of a three-phase permanent magnet synchronous motor according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The utility model will be further described in detail in combination with the embodiments and the drawings.

[0017] The translation door according to the embodiment of the utility model is shown in FIG. 1. Figures 1 to 5, including the parallel translation door machine 200, the parallel translation door machine 200 drives a door body 100 left and right parallel movement, the parallel translation door machine 200 is provided with a motor 203 and a normally closed switch K, the motor 203 is controlled by the normally closed switch K to form a short circuit when power failure, the parallel translation door machine 200 is also provided with a lock body 201 capable of controlling the main line switch of the motor 203, and the motor 203 is opened after the lock body 201 is unlocked by a key.

[0018] When the parallel translation door works normally, the lock body 201 is in the locked state, the normally closed switch K is powered and opened, at this time the motor 203 works normally, thereby driving the door body 100 to translate to realize the opening and closing of the door; when power failure, the normally closed switch K is simultaneously de-energized and closed, thereby making the main line of the motor 203 short-circuit, if someone moves the door body 100 forcibly, the motor 203 is reversely driven at high speed through the deceleration mechanism (the magnetic field and the coil cut the magnetic force line to move to generate induced electromotive force), that is, it becomes a generator, at this time, due to the short-circuit of the motor 203, the impedance force is not easy to rotate in the motor, and the damping effect is generated to avoid the door body 100 being pushed by human force. When the door body 100 needs to be pushed by human force during power failure or failure, the lock body 201 is unlocked by a key, thereby breaking the main line of the motor 203, at this time, the door body 100 is artificially pushed, and the impedance force is not generated in the motor, thereby the door body 100 can be easily pushed. The parallel translation door sets the normally closed switch K to control the motor 203 to form a short circuit during power failure, and sets the lock body 201 to break the main line of the motor 203 after unlocking, thereby using a simple structure to solve the problem that a complex mechanical clutch is needed to unlock to achieve the purpose of manually pushing and closing the door during power failure.

[0019] In an embodiment of the parallel translation door, please refer to Figures 1-3 , on the basis of the foregoing technical solutions, specifically, a rack 101 is further arranged on the door body 100, a gear 202 engaged with the rack 101 is fixed on the motor driving shaft, the gear 202 rotates to drive the door body 100 to move left and right in parallel, and an encoder 204 detecting the rotation of the motor 203 is further arranged on the motor 203. Therefore, the stroke switch is not needed, and the encoder 204 is combined with the gear 202 and the rack 101 to calculate the opening and closing stroke distance, thereby accurately achieving the purpose of opening and closing the door and stopping.

[0020] In an embodiment of the parallel translation door, please refer to Figures 1-5 , on the basis of the foregoing technical solutions, specifically, the motor 203 is a common permanent magnet motor or a three-phase permanent magnet synchronous motor.

[0021] In an embodiment of the parallel translation door, please refer to Figure 4 and Figure 5On the basis of the preceding technical solution, the input end of the motor 203 can be connected in parallel with two groups of lines, wherein the first group of lines is powered by the controller 205, and the second group of lines of the motor 203 is short-circuited through a normally closed switch K, and the normally closed switch K is connected to the power supply; when the power supply stops supplying power, the normally closed switch K short-circuits the second group of lines, and when the power supply supplies power, the normally closed switch K breaks the circuit of the second group of lines. In this embodiment, the lock body 201 is the main line of the control motor, and in other embodiments, the second group of lines of the lock body control motor can also achieve the same purpose.

[0022] In an embodiment of a sliding door, please refer to Figure 1 On the basis of the preceding technical solution, the sliding door machine 200 is fixed to the ground, and a guide rail 300 is further arranged on the ground, and at least two rollers 102 are arranged at the lower edge of the door body 100, and the rollers 102 are arranged to roll on the guide rail 300.

[0023] In an embodiment of a sliding door, please refer to Figure 1 On the basis of the preceding technical solution, the guide rail 300 is arranged with an overrunning block 301 at both ends to limit the movement of the door body, one side being an opening overrunning block and the other side being a closing overrunning block, so as to avoid the door body 100 from being pulled out of the guide rail 300 at both ends.

[0024] The above is a description of the sliding door of the present application, which is used to help understand the present application, but the embodiments of the present application are not limited by the above embodiments, and any changes, modifications, substitutions, combinations, simplifications made without departing from the principles of the present application should be equivalent replacement methods, and all are included in the protection scope of the present application.

Claims

1. A sliding door, characterized in that: The translation door machine drives a door body to move left and right, a motor and a normally closed switch are arranged in the translation door machine, the motor is controlled by the normally closed switch to form a short circuit when power is off, a lock body is arranged on the translation door machine to control the main line switch of the motor, and the lock body is unlocked to disconnect the motor.

2. The translating door of claim 1, wherein: A rack is arranged on the door body, a gear engaged with the rack is fixed on the driving shaft of the motor, the gear rotates to drive the door body to move left and right, and an encoder is arranged on the motor to detect the rotation of the motor.

3. The translating door of claim 1, wherein: The motor is a common permanent magnet motor or a three-phase permanent magnet synchronous motor.

4. The translating door of claim 1, wherein: Two groups of lines are connected in parallel to the input end of the motor, the first group of lines is powered by a controller, the second group of lines of the motor is short-circuited through a normally closed switch, and the normally closed switch is connected to a power supply. When the power supply stops supplying power, the normally closed switch short-circuits the second group of lines, and when the power supply supplies power, the normally closed switch disconnects the second group of lines.

5. The translating door of claim 1, wherein: The translation door machine is fixed on the ground, a guide rail is arranged on the ground, at least two rollers are arranged on the lower edge of the door body, and the rollers are arranged to roll on the guide rail.

6. The translating door of claim 5, wherein: The guide rail is provided with an overrunning block at two ends to limit the movement of the door body.

Images